1. Department of Otolaryngology, Phoniatrics and Audiology, Collegium Medicum, Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland
2. Department of Otolaryngology, The Provincial Polyclinical Hospital in Toruń, 87-100 Toruń, Poland
3. Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland
4. Department of Pathophysiology, Collegium Medicum, Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland
5. Department of Pharmacology and Therapy, Collegium Medicum, Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland